In 2018 the scores of students on the May SAT had a normal distribution with mean u = 1450 and a standard deviation of o = 120. a. What is the probability that
a single student randomly chosen from all those taking the test scores 1500 or higher?

b. If a sample of 50 students is taken from the population, what is the probability that the sample mean score of these students is 1470 or higher?

step-by-step explanation:

i think you should think about the question and not look online.

f(x)=2/3x+4/3 is the answer because is whose power in the senate is equal to the power of the speaker of the house?

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west